Two alternating images of bump gray square. Second image shows lighter spot in the center.

See Beresheet spacecraft’s impact site on moon

NASA released before and after images of the spot on the moon where Israel’s Beresheet spacecraft crash-landed on April 11.

Photo showing the eyewall of Hurricane Michael

How do hurricanes get their names?

The World Meteorological Organization manages the formal system by which hurricanes receive their names. Find hurricane names for 2019 here.

Rows of beach houses, flooded.

It’s Hurricane Preparedness Week. Are you ready?

May 5-11, 2019, is Hurricane Preparedness Week in the U.S. If a hurricane were approaching, would you and your family be ready? This post will tell you how to prepare.

Dramatic image of dark shelf cloud over a 3-story building.

What you need to know about derechos

Derechos typically form in late spring and summer. They are violent storm systems that can produce widespread wind damage across a large area. Check out the images in this post.

Microplastics found in remote Pyrenees Mountains

Microplastic particles – too small for the human eye to see – were blown into the once pristine region by the wind, according to a new study.

When does Ramadan begin in 2019?

Earliest sightings of a young crescent in the west after sunset mark the start of the Islamic holy month of Ramadan. When will the UAE’s moon-sighting committee see this month’s young moon? If they’re using binoculars and telescopes (and have clear skies), they might see it May 5. For the eye alone, the date is probably May 6.

Will the Higgs boson help scientists trap dark matter?

A University of Chicago physicist has laid out an innovative method – using the Higgs boson – for stalking dark matter. He said the Higgs might actually be “a portal to the dark world.”

Why do we celebrate May Day?

Happy May Day! A few words about this annual celebration, which has its roots in astronomy.

What’s the birthstone for May?

If you were born in May, your birthstone is the emerald, a type of beryl colored green by chromium. Perfect emeralds are among the rarest of gemstones.

Head shot of a pink baby pig

When is dead really dead?

A recent study of pigs’ brains suggested some activity could be restored even after they’d been dead 4 hours, reinforcing the idea that death is a process. A neuroscientist explains.

Line drawing of asteroid orbit in the inner solar system.

The day the asteroid might hit

For the 1st time, the European Space Agency will cover progress of a hypothetical asteroid impact scenario – this week – live via social media, from the heart of the Planetary Defense Conference in Washington, DC.

Artist's depiction of 8 human skull fossils.

Human history in your face

When you look in a mirror, the face you see is the result of millions of years of human evolution. Here’s an interview with an expert discussing how and why our modern human faces evolved to look as they do today.

Why observe Earth Day on April 22?

April 22 is the date of Earth Day in part because of Arbor Day, an earlier observance. The focus of Earth Day 2019 is protection of Earth species.

A basket full of colored Easter eggs.

Why is Easter so late this year?

Easter is this Sunday. Astronomer Guy Ottewell explains why it’s a late Easter, but not the latest it can be.

Moon’s south pole possible landing site

NASA hopes to send astronauts to the surface of the moon in 5 years, and has planned a landing site where no human has yet been: the lunar south pole.

Why does the moon seem to follow me?

Here’s something you – or your kids – might have noticed: When you’re in a moving car, earthly objects get left behind, but the moon seems to follow. Why?

Video still of April 6, 2019 meteor.

Another asteroid disintegrates over Russia

A bright meteor was caught in many dashcam videos – in broad daylight – on April 6, 2019, over the Russian city of Krasnoyarsk. See a video compilation here.

Identical twin male astronauts sitting next to each other.

Does a year in space make you older or younger?

The NASA Twins study – featuring astronaut twins Scott and Mark Kelly – was the perfect space experiment. Scott spent a year in space aboard the International Space Station. Mark remained on Earth. The results?

Check out this peregrine falcon webcam

An EarthSky community member – Jody Kuchar – alerted us to the webcam, which is based in Wisconsin. Thank you, Jody!

Black hole image confirm Einstein’s relativity theory?

Einstein’s theory was confirmed in 1919, when British astronomer Sir Arthur Eddington measured the bending of starlight around the sun during a total solar eclipse. And it’s been re-confirmed since. How about now?